{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5010",
    "entityType": "User",
    "nonce": "0x87b8815fd5fb9c92cf3d4959c5be997b26c9e074250c6300d4f8220ca7a7def1",
    "signature": "0x288c6f7966926bd7a46ef78c66857f00e4ddf6ce7dc59b30a0f575cf20c820bb1b0d6fc4d9ac8a5be02c01d1c1b21df271d5f080e9754c938de7b66df596a5701b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}